刚性道面上水泥混凝土加铺层系统的动态设计理论研究  

Research on Methods of The Overlay on Existing Rigid Concrete Pavements

作　　者：杨艳红 刘洪兵[2] 杨扬[2] 张春燕[2] 

机构地区：[1]福建省福州市规划设计研究院,福建福州350003 [2]西北工业大学力学与土木建筑学院,陕西西安710072

出　　处：《中南公路工程》2006年第2期106-108,123,共4页Central South Highway Engineering

摘　　要：讨论移动荷载下弹性半空间地基上的刚性道面水泥混凝土分离式加铺层的动态设计方法。由系统运动方程出发,利用界面连续条件,通过二维Fourier积分变换,求出加铺层板系统在移动荷载作用下的挠度解析解。然后利用高斯积分求出数值解,并以此为基础通过实测值及目标优化反算加铺层厚度。通过实例计算,按本文方法计算的挠度满足工程精度要求。Research on methods of the overlay on existing rigid concrete pavements,which is on semiinfinite elastic medium to moving load, is involved in this paper. Exact solutions are derived for the forced vibration of plate on elastic foundation to moving loads, which is based upon the use of the 2-D Fourier transforms to the motion equations and boundary conditions. A calculation program is provided by the methods of numeric integration and the thickness of the overlay is achieved. Numerical example demonstrates that the results in this paper are correct.

关 键 词：加铺层 移动荷载 无损检测 积分变换 高斯积分 

分 类 号：U416.02[交通运输工程—道路与铁道工程]